In today's digital world, protecting your sensitive data is paramount. This means not only securing your backups but also securing the accounts used to access them. That's where YubiKeys come in. YubiKeys are small, physical security keys that provide an extra layer of protection against unauthorized access. They offer strong, hardware-based multi-factor authentication (MFA), making it significantly harder for hackers to compromise your accounts. 

YubiKeys use cryptographic keys to verify your identity. When you register a YubiKey with an online account, a unique cryptographic key is generated. During login, the website sends a request to the YubiKey to sign a challenge with its private key. The website then verifies the signature with the public key associated with that YubiKey. Because this process requires physical interaction with the YubiKey, it's highly secure and resistant to phishing.

YubiKeys provide a high level of security due to their physical nature. They are resistant to phishing attacks, malware, and keyloggers, offering better protection than software-based MFA. 

YubiKeys are easy to use. Simply plug in the key or tap it against your device to log in. They are compatible with numerous accounts and services, making them a versatile security tool. 

While direct hardware key integration may vary across services, using YubiKeys to protect the accounts that access your important data is strongly recommended. Securing access to these accounts is just as important as securing the data itself. Use YubiKeys to protect your email, cloud storage, and other accounts that hold sensitive information. 

• Store your YubiKey in a safe and secure location.

• Purchase a backup YubiKey and register it with your accounts.

• Immediately revoke access if you lose your YubiKey.

• Register your YubiKey with all possible accounts that support hardware keys.